Alachlor

Action/Use:

Herbicide

Use: A selective, soil-active herbicide applied preplant or preemergence. Shallow, mechanical soil incorporation may be necessary to improve weed control. Controls most annual grasses and certain broadleaf weeds in corn, dry beans, peanuts, soybeans.

Identification

Common Name(s): Alachlor (ANSI, ISO, BSI, JMAF, WSSA); ; Alachlore (ISOF)

Chemistry

Class: Acetanilide.

Properties: Tech: Colorless crystals, molecular weight 269.77. Melting point 39.5�-41.5�C; specific gravity 1.133 at 25�/15.6�C. Soluble in ethyl acetate.

Mode of Action / Resistance Management

Chemical Group: Chloroacetamide

Mode of Action: Inhibition of VLCFAs (Inhibition of cell divison)

Action Group: HRAC Group K3; WSSA Group 15

Environmental Guidelines

Hazards: Tech: LC₅₀ (48 h) 10 mg/l (Daphnia). INTRRO*: Fish: LC₅₀ (96 h) 3.7 mg/l (rainbow trout), 6.2 mg/l (bluegill sunfish); EC₅₀ (48 h) 22 mg/l (Daphnia). Micro-Tech*: Bird: Oral LD₅₀ >2510 mg/kg (bobwhite quail); Dietary (8 day) LC₅₀ 9094 ppm (bobwhite quail, mallard duck)

Water Solubility: 242 ppm at 25�C

Safety Guidelines

Signal Word: DANGER (INTRRO*), CAUTION (Tech, Micro-Tech*)

Toxicity Class: I, III

Toxicity: Tech (Rat): Oral LD₅₀ 1800 mg/kg. (Rabbit) Dermal LD₅₀ 13,300 mg/kg. INTRRO* (Rat): Oral LD₅₀ 2000 mg/kg; (Rabbit): Dermal LD₅₀ 7800 mg/kg. Micro-Tech* (Rat): Oral LD₅₀ >5000 mg/kg. (Rabbit) Dermal LD₅₀ >5000 mg/kg

Handling/storage: Store abovd 32°F away from heat or flame. Warm to 72°F and roll or shake frequently if frozen

Protective Clothing: Long-sleeved shirt and long pants. Chemical-resistant gloves. Chemical-resistant footwear plus socks. Protective eyewear.

Suppliers and Branded Products

Basic Producers:

Agro-Care Chemical Industry Group Limited (Lazo-chlor*)

Agsin Pte. Ltd.

Cambus Corp.

Chem East S.A.

Crystal Chemical Inter-America (Alanox*)

Dongbu Fine Chemicals Co., Ltd.

FFC Limited

General Chemical Co., Ltd.